381546874 has 8 divisors (see below), whose sum is σ = 573287220. Its totient is φ = 190451136.

The previous prime is 381546871. The next prime is 381546883. The reversal of 381546874 is 478645183.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 368908849 + 12638025 = 19207^2 + 3555^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (381546871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159669 + ... + 162040.

Almost surely, 2^381546874 is an apocalyptic number.

381546874 is a deficient number, since it is larger than the sum of its proper divisors (191740346).

381546874 is a wasteful number, since it uses less digits than its factorization.

381546874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322304.

The product of its digits is 645120, while the sum is 46.

The square root of 381546874 is about 19533.2248745567. The cubic root of 381546874 is about 725.2971427252.

The spelling of 381546874 in words is "three hundred eighty-one million, five hundred forty-six thousand, eight hundred seventy-four".